Multi-cvt drive system having differential epicycle gear set

ABSTRACT

The present invention utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; between the output ends of the mentioned two continuous variable transmissions, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be further installed according to actual needs.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention provides a multi-CVT drive system having epicyclicgear set, which utilizes the rotary kinetic power of a rotary kineticpower source to directly drive the epicyclic gear set, or to drive theepicyclic gear set through a transmission device, then a continuousvariable transmission (CVT) is individually installed between two outputshafts of the epicyclic gear set and the load driven thereby, so thewheel set of the driven load is enabled to randomly perform variation ofthe driving speed ratio and the driving torque, so as to drive thecombined common load; between the output ends of the mentioned twocontinuous variable transmissions, a limited slip differential or astabilize device composed of a dual shaft connecting device having slipcoupling torque can be further installed according to actual needs, sowhen differential operation is performed between the two loads, thestabilize device can be served to stable the operation of the drivesystem.

(b) Description of the Prior Art

When a conventional single power performs differential driving to two ormore than two of individual loads of a common load body, a differentialwheel set is often used for achieving the function of differentialspeed, the mentioned means has a shortage of not being able to generatethe torque differential between the two loads.

SUMMARY OF THE INVENTION

The present invention provides a multi-CVT drive system having epicyclicgear set, which utilizes the rotary kinetic power of a rotary kineticpower source to directly drive the epicyclic gear set, or to drive theepicyclic gear set through a transmission device, then a continuousvariable transmission (CVT) is individually installed between two outputshafts of the epicyclic gear set and the load driven thereby, so thewheel set of the driven load is enabled to randomly perform variation ofthe driving speed ratio and the driving torque, so as to drive thecombined common load; between the output ends of the mentioned twocontinuous variable transmissions, a limited slip differential or astabilize device composed of a dual shaft connecting device having slipcoupling torque can be further installed according to actual needs, sowhen differential operation is performed between the two loads, thestabilize device can be served to stable the operation of the drivesystem.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view illustrating the common load body (L100)being installed with a first epicyclic gear set (EG101) driven by therotary kinetic power of a rotary kinetic power source (P100), acontinuous variable transmission (CVT100) being installed between a leftend output shaft (1011) of the first epicyclic gear set (EG101) and aleft side wheel set (W100) of the loading end, and a continuous variabletransmission (CVT200) being installed between a right end output shaft(1012) and a right side wheel set (W200), according to one embodiment ofthe present invention.

FIG. 2 is schematic view illustrating a continuous variable transmission(CVT100) and a continuous variable transmission (CVT300) beingindividually installed between left end output shaft (1011) of the firstepicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at therear left side of the loading end and the wheel set (W300) at the frontleft side, and a continuous variable transmission (CVT200) and acontinuous variable transmission (CVT400) being individually installedbetween the right end output shaft (1012) and the wheel set (W200) atthe rear right side of the loading end and the wheel set (W400) at thefront right side, according to one embodiment of the present invention.

FIG. 3 is schematic view illustrating a continuous variable transmission(CVT100) and a continuous variable transmission (CVT300) and acontinuous variable transmission (CVT500) being individually installedbetween the left end output shaft (1011) of the first epicyclic gear set(EG101) of FIG. 1 and the wheel set (W100) at the rear left side, thewheel set (W300) at the front left side and the wheel set (W500) at themiddle left side of the loading end, and a continuous variabletransmission (CVT200) and a continuous variable transmission (CVT400)and a continuous variable transmission (CVT600) being individuallyinstalled between the right end output shaft (1012) thereof and thewheel set (W200) at the rear right side, the wheel set (W400) at thefront right side and the wheel set (W600) at the middle right side,according to one embodiment of the present invention.

FIG. 4 is a schematic view illustrating FIG. 2 being further installedwith a first epicyclic gear seat (EG101) and a second epicyclic gear set(EG102) driven by the rotary kinetic power of the rotary kinetic powersource (P100), and a continuous variable transmission (CVT100) beinginstalled between the left end output shaft (1011) of the firstepicyclic gear set (EG101) and the wheel set (W100) at the rear leftside of the loading end, a continuous variable transmission (CVT200)being installed between the right end output shaft (1012) and the wheel(W200) at the rear right side, and a continuous variable transmission(CVT300) being installed between the left end output shaft (1021) of thesecond epicyclic gear set (EG102) and the wheel set (W300) at the frontleft side, and a continuous variable transmission (CVT400) beinginstalled between the right end output shaft (1022) and the wheel set(W400) at the front right side, according to one embodiment of thepresent invention.

FIG. 5 is a schematic view illustrating FIG. 3 being further installedwith a first epicyclic gear seat (EG101), a second epicyclic gear set(EG102) and a third epicyclic gear set (EG103) driven by the rotarykinetic power of the rotary kinetic power source (P100), and acontinuous variable transmission (CVT100) being installed between theleft end output shaft (1011) of the first epicyclic gear set (EG101) andthe wheel set (W100) at the rear left side of the loading end, acontinuous variable transmission (CVT200) being installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside, a continuous variable transmission (CVT300) being installedbetween the left end output shaft (1021) of the second epicyclic gearset (EG102) and the wheel set (W300) at the front left side, acontinuous variable transmission (CVT400) being installed between theright end output shaft (1022) and the wheel set (W400) at the frontright side, a continuous variable transmission (CVT500) being installedbetween the left end output shaft (1031) of the third epicyclic gear set(EG103) and the wheel set (W500) at the middle left side, and acontinuous variable transmission (CVT600) being installed between theright end output shaft (1032) and the wheel set (W600) at the middleright side, according to one embodiment of the present invention.

DESCRIPTION OF MAIN COMPONENT SYMBOLS

-   CL100    CL200    CL300    CL400    CL500    CL600: clutch device-   CVT100    CVT200    CVT300    CVT400    CVT500    CVT600: continuous variable transmission-   EG101: first epicyclic gear set-   EG102: second epicyclic gear set-   EG103: third epicyclic gear set-   1011    1021    1031: left end output shaft-   1012    1022    1032: right end output shaft-   L100: common load body-   MI 100: operation interface-   P100: rotary kinetic power source-   SDT100    SDT200    SDT300: stabilize device-   T100    T101    T200    T300    T400    T500    T600: transmission device-   W100    W200    W300    W400    W500    W600: wheel set

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

When a conventional single power performs differential driving to two ormore than two of individual loads of a common load body, a differentialwheel set is often used for achieving the function of differentialspeed, the mentioned means has a shortage of not being able to generatethe torque differential between the two loads.

The present invention provides a multi-CVT drive system having epicyclicgear set, which utilizes the rotary kinetic power of a rotary kineticpower source to directly drive the epicyclic gear set, or to drive theepicyclic gear set through a transmission device, then a continuousvariable transmission (CVT) is individually installed between two outputshafts of the epicyclic gear set and the load driven thereby, so thewheel set of the driven load is enabled to randomly perform variation ofthe driving speed ratio and the driving torque, so as to drive thecombined common load; the mentioned common load body (L100) is mainlydefined as the frame body of a vehicle, and is installed with a rotarykinetic power source, relative operation and transmission interfacedevices, and installed with loading wheel sets driven by the rotarykinetic power source and installed with non-powered wheels not beingdriven by the rotary kinetic power source (P100) according to actualneeds, thereby jointly carrying the common load body (L100).

According to the multi-CVT drive system having epicyclic gear set, alimited slip differential or a stabilize device composed of a dual shaftconnecting device having slip coupling torque can be further installedat opposite locations horizontally and coaxially defined at two sidesalong the driving direction of the common load body (L100) and betweenthe same transmission operation sets, and when the differentialoperation is performed between two loads, the stabilize device is servedto stabilize the operation of the drive system; the stabilize deviceincludes a limited slip differential, or a coupling torque dual shaftconnecting device composed of a coupling device having slip damp, e.g. adual shaft structure configured by fluid viscous effect, hydrodynamicdamp effect, mechanical friction effect, electromagnetic vortex effector power generation reverse torque effect, and two rotating ends of thestabilize device are respectively connected to: one or more than onelocation of the opposite locations horizontally and coaxially defined onthe following transmission operation sets, including:

-   (1) installed between wheel set rotation parts oppositely at the    left side and the right side;-   (2) installed between opposite output ends of the continuous    variable transmissions at the left side and the right side;-   (3) installed between opposite output ends of clutch devices at the    left side and the right side;-   (4) installed between the input end or the output end oppositely at    the left side and the right side of the transmission device;-   (5) installed between the rotation parts at left side and the right    side of the wheel set;

By installing the mentioned stabilize device for the driving operation,when the load varying at individual loading end, or the control requiredby the operation state of the opposite continuous variabletransmissions, or the unstable state during operation, the stabilizedevice can be served to stabilize the system; the stabilize device canbe optionally installed according to actual needs.

According to the multi-CVT drive system having epicyclic gear set,between the input end of individual continuous variable transmission tothe wheel set of the loading end, a stepped or continuous variabletransmission having fixed speed ratio for acceleration or decelerationor changing direction can be further installed at one or more than oneof following locations, including:

-   (1) installed at the input end of the continuous variable    transmission;-   (2) installed at the output end of the continuous variable    transmission;-   (3) installed at the input end of the clutch device;-   (4) installed at the output end of the clutch device;-   (5) installed at the input end of the wheel set at the loading end;

The mentioned transmission device is consisted of mechanical gear sets,or chain sets or pulley sets or linkage rod sets, and composed of atransmission device having fixed speed ratio for acceleration ordeceleration or changing direction, or a manually-operated or automaticor semi-automatic speed ratio varying or belt type continuous variabletransmission, or a hydraulic torque converter; the transmission devicecan be optionally installed according to actual needs.

According to the multi-CVT drive system having epicyclic gear set,between the input end of individual continuous variable transmission andthe wheel set of the loading end, a clutch device can be furtherinstalled at one or more than one of following locations, including:

-   (1) installed at the input end of the continuous variable    transmission;-   (2) installed at the output end of the continuous variable    transmission;-   (3) installed at the input end of the clutch device;-   (4) installed at the output end of the clutch device;-   (5) installed at the input end of the wheel set at the loading end;

The mentioned clutch device is controlled by manual force or centrifugalforce, or controlled by the operation interface, and can be served as aclutch device or structure having function of performing transmissionengaging or releasing while being driven by electric force and/ormagnetic force and/or mechanical force and/or pressure and/or hydraulicforce, and has a rotary input end and a rotary output end; the clutchdevice can be optionally installed upon actual requirements;

The multi-CVT drive system having epicyclic gear set of the presentinvention can be applied to the wheel type vehicles, or track typevehicles, or rail vehicles, or ships driven by at least two individualmotors, or human flow or logistics conveyors, or industrial equipmentsdriven by at least two motor sets.

Embodiments according to the present invention are illustrated asfollowings:

FIG. 1 is a schematic view illustrating the common load body (L100)being installed with a first epicyclic gear set (EG101) driven by therotary kinetic power of a rotary kinetic power source (P100), acontinuous variable transmission (CVT100) being installed between a leftend output shaft (1011) of the first epicyclic gear set (EG101) and aleft side wheel set (W100) of the loading end, and a continuous variabletransmission (CVT200) being installed between a right end output shaft(1012) and a right side wheel set (W200), according to one embodiment ofthe present invention.

As shown in FIG. 1, the present invention utilizes the rotary output endof the rotary kinetic power source (P100) of the common load body (L100)to directly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) is installed between the left end output shaft (1011) of thetwo output ends of the first epicyclic gear set (EG101) and the leftside wheel set (W100) of the loading end of the common load body (L100),and the continuous variable transmission (CVT200) is installed betweenthe right end output shaft (1012) of the two output ends of the firstepicyclic gear set (EG101) and the right side wheel set (W200), therebyforming the drive system capable of being operated in the differentialspeed and variable speed state, which mainly consists of:

rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice;

transmission device (T101): constituted by a transmission device havingfixed speed ratio or variable speed ratio or continuous variable speedand consisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets; installed between the rotary kinetic power source(P100) and the first epicyclic gear set (EG101); the transmission device(T101) can be optionally adopted according to actual needs;

first epicyclic gear set (EG101): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT100), the right end output shaft(1012) is served to drive the input end of the continuous variabletransmission (CVT200);

continuous variable transmission (CVT100), (CVT200): the continuousvariable transmission (CVT) is in the structural configuration capableof automatically changing speed ratio upon passively receiving thedriving rotational speed and/or the loading torque, or is subject to theexternal control to actively change speed ratio, such as a rubber belttype, metal belt type, chain type continuous variable transmission, oran electric continuous variable transmission (ECVT), or a friction disktype, or a conventional different-shaft type continuous variabletransmission;

operation interface (MI100): related to a linear analog type, or digitaltype or hybrid type control device, and constituted by an operationmechanism and/or electromechanical device and/or solid state electriccircuit, provided for controlling the operation status of the rotarykinetic power source (P100), and/or controlling the operation of thecontinuous variable transmission (CVT100) and/or the continuous variabletransmission (CVT200);

stabilize device (SDT100): constituted by a limited slip differential,or a dual shaft connecting device composed of a coupling device havingslip damp coupling torque, including a stabilize device with the dualshaft structure configured through fluid viscous effect, hydrodynamicdamp effect, mechanical friction effect, electromagnetic vortex effector power generation reverse torque effect; wherein two rotating endsthereof are respectively connected between the left side wheel set(W100) and the right side wheel set (W200) of the loading end; duringthe driving operation, if the load varying at the individual two sidesof the loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) installed between thewheel sets at the left and right sides, the operation of the system canbe stabilized; the stabilize device (SDT100) can be optionally installedaccording to actual needs;

According to the embodiment disclosed in FIG. 1, the input end or theoutput end of the continuous variable transmission (CVT) or the inputend of the wheel set can be further installed with a transmissiondevice, wherein:

transmission device (T100), (T200): the output end of the transmissiondevice (T100) is served to drive the left side wheel set (W100) of theloading end, and the input end thereof is driven by the rotary kineticpower from the output end of the continuous variable transmission(CVT100); the output end of the transmission device (T200) is served todrive the right side wheel set (W200), and the input end thereof isdriven by the rotary kinetic power from the output end of the continuousvariable transmission (CVT200); the transmission device (T100) and thetransmission device (T200) are consisted of mechanical gear sets, orchain sets, pulley sets or linkage rod sets, and structured as atransmission device having fixed speed ratio for acceleration ordeceleration or changing direction, or a manually-operated or automaticor semi-automatic speed ratio or belt type continuous variabletransmission, or a hydraulic type torque converter; the transmissiondevices (T100), (T200) can be optionally installed according to actualneeds;

According to the embodiment disclosed in FIG. 1, between the output endof the continuous variable transmission individually installed onindividual wheel set and the loading end, a clutch device can be furtherinstalled between the output end of the continuous variable transmissionto the transmission chain of the input end of the wheel set used fordistal driving, wherein:

clutch device (CL100), (CL200): the clutch device (CL100) is installedbetween the output end of the continuous variable transmission (CVT100)and the wheel set (W100) for controlling the continuous variabletransmission (CVT100) to output the rotary kinetic power to the wheelset (W100), and the clutch device (CL200) is installed between theoutput end of the continuous variable transmission (CVT200) and thewheel set (W200) for controlling the continuous variable transmission(CVT200) to output the rotary kinetic power to the wheel set (W200); theclutch device (CL100) and the clutch device (CL200) include beingcontrolled by manual force or centrifugal force, or controlled throughthe operation interface (MI100), and formed as a clutch device orstructure driven by electric force and/or magnetic force and/ormechanical force and/or pressure and/or hydraulic force for performingtransmission engaging or releasing, and having a rotary input end and arotary output end; the clutch devices (CL100, CL200) can be optionallyinstalled upon actual needs;

According to the embodiment shown in FIG. 1, the common load body (L100)can be provided with one or more than one non-powered wheels accordingto actual needs;

With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the left side wheel set (W100) and the right side wheel set (W200)of the loading end are operated in differential speeds, the speed ratiosof the continuous variable transmission (CVT100) and the continuousvariable transmission (CVT200) are individually adjusted along with theload varying of the wheel set (W100) and the wheel set (W200) of theloading end, and the two output ends of the first epicyclic gear set(EG101) perform differential operation for adjustment, so as to drive indifferential speed between the input end of the continuous variabletransmission (CVT100) and the input end of the continuous variabletransmission (CVT200).

FIG. 2 is schematic view illustrating a continuous variable transmission(CVT100) and a continuous variable transmission (CVT300) beingindividually installed between left end output shaft (1011) of the firstepicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at therear left side of the loading end and the wheel set (W300) at the frontleft side, and a continuous variable transmission (CVT200) and acontinuous variable transmission (CVT400) being individually installedbetween the right end output shaft (1012) and the wheel set (W200) atthe rear right side of the loading end and the wheel set (W400) at thefront right side, according to one embodiment of the present invention;

As shown in FIG. 2, the present invention utilizes the rotary output endof the rotary kinetic power source (P100) of the common load body (L100)to directly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) and the continuous variable transmission (CVT300) arerespectively installed between the left end output shaft (1011) of thetwo output ends of the first epicyclic gear set (EG101) and the wheelset (W100) at the rear left side and the wheel set (W300) at the frontleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT200) and thecontinuous variable transmission (CVT400) are installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside and the wheel set (W400) at the front right side of the loading endat the right side of the common load body (L100), thereby forming thedrive system capable of being operated in the speed differential state,which mainly consists of:

rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice;

transmission device (T101): constituted by a transmission device havingfixed speed ratio or variable speed ratio or continuous variable speedand consisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets; installed between the rotary kinetic power source(P100) and the first epicyclic gear set (EG101); the transmission device(T101) can be optionally adopted according to actual needs;

first epicyclic gear set (EG101): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input ends of thecontinuous variable transmission (CVT100) and the continuous variabletransmission (CVT300), and the right end output shaft (1012) thereof isserved to drive the input ends of the continuous variable transmission(CVT200) and the continuous variable transmission (CVT400);

continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400):the continuous variable transmission (CVT) is in the structuralconfiguration capable of automatically changing speed ratio uponpassively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission;

operation interface (MI100): related to a linear analog type, or digitaltype or hybrid type control device, and constituted by an operationmechanism and/or electromechanical device and/or solid state electriccircuit, provided for controlling the operation status of the rotarykinetic power source (P100), and/or controlling the operation of thecontinuous variable transmission (CVT 100) and/or the continuousvariable transmission (CVT200) and/or the continuous variabletransmission (CVT300) and/or the continuous variable transmission(CVT400);

stabilize device (SDT100), (STD200): constituted by a limited slipdifferential, or a dual shaft connecting device composed of a couplingdevice having slip damp coupling torque, including a stabilize devicewith the dual shaft structure configured through fluid viscous effect,hydrodynamic damp effect, mechanical friction effect, electromagneticvortex effect or power generation reverse torque effect; wherein tworotating ends of the stabilize device (SDT100) are respectivelyconnected between the wheel set (W100) at the rear left side and thewheel set (W200) at the rear right side of the loading end, and tworotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) installed between the two opposite wheel sets at theleft and right sides, the operation of the system can be stabilized; thestabilize device (SDT100) and/or the stabilize device (SDT200) can beoptionally installed according to actual needs;

According to the embodiment disclosed in FIG. 2, the input end or theoutput end of the continuous variable transmission or the input end ofthe wheel set can be further installed with a transmission device,wherein:

transmission device (T100), (T200), (T300), (T400): the output end ofthe transmission device (T100) is served to drive the wheel set (W100)at the rear left side of the loading end, and the input end thereof isdriven by the rotary kinetic power from the output end of the continuousvariable transmission (CVT100); the output end of the transmissiondevice (T200) is served to drive the wheel set (W200) at the rear rightside, and the input end thereof is driven by the rotary kinetic powerfrom the output end of the continuous variable transmission (CVT200);the output end of the transmission device (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the transmission devices (T100), (T200), (T300),(T400) are consisted of mechanical gear sets, or chain sets, pulley setsor linkage rod sets, and structured as a transmission device havingfixed speed ratio for acceleration or deceleration or changingdirection, or a manually-operated or automatic or semi-automatic speedratio or belt type continuous variable transmission, or a hydraulic typetorque converter; the transmission device s (T100), (T200) and/or(T300), (T400) can be optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 2, between the output endof the continuous variable transmission individually installed onindividual wheel set and the loading end, a clutch device can be furtherinstalled between the output end of the continuous variable transmissionto the transmission chain of the input end of the wheel set used fordistal driving, wherein:

clutch device (CL100), (CL200), (CL300), (CL400): the clutch device(CL100) is installed between the output end of the continuous variabletransmission (CVT100) and the wheel set (W100) for controlling thecontinuous variable transmission (CVT100) to output the rotary kineticpower to the wheel set (W100), the clutch device (CL200) is installedbetween the output end of the continuous variable transmission (CVT200)and the wheel set (W200) for controlling the continuous variabletransmission (CVT200) to output the rotary kinetic power to the wheelset (W200), the clutch device (CL300) is installed between the outputend of the continuous variable transmission (CVT300) and the wheel set(W300) for controlling the continuous variable transmission (CVT300) tooutput the rotary kinetic energy to the wheel set (W300), and the clutchdevice (CL400) is installed between the output end of the continuousvariable transmission (CVT400) and the wheel set (W400) for controllingthe continuous variable transmission (CVT400) to output rotation kineticenergy to the wheel set (W400); the clutch devices (CL100), (CL200),(CL300), (CL400) include being controlled by manual force or centrifugalforce, or controlled through the operation interface (MI100), and formedas a clutch device or structure driven by electric force and/or magneticforce and/or mechanical force and/or pressure and/or hydraulic force forperforming transmission engaging or releasing, and having a rotary inputend and a rotary output end; the clutch devices (CL100, CL200, CL300,CL400) can be optionally installed upon actual needs;

According to the embodiment shown in FIG. 2, the common load body (L100)can be provided with one or more than one non-powered wheels accordingto actual needs;

With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the wheel set (W100) at the rear left side and the wheel set (W200)at the rear right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission(CVT100) and the continuous variable transmission (CVT200) areindividually adjusted along with the load varying of the wheel set(W100) and the wheel set (W200) of the loading end, and the two outputends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT100) and theinput end of the continuous variable transmission (CVT200); when thewheel set (W300) at the front left side and the wheel set (W400) at thefront right side of the loading end are operated in differential speeds,the speed ratios of the continuous variable transmission (CVT300) andthe continuous variable transmission (CVT400) are individually adjustedalong with the load varying of the wheel set (W300) and the wheel set(W400) of the loading end, and the left end output shaft (1011) and theright end output shaft (1012) of the two output ends of the firstepicyclic gear set (EG101) perform differential operation for adjustmentso as to drive in differential speed between the input end of thecontinuous variable transmission (CVT300) and the input end of thecontinuous variable transmission (CVT400); if the operation indifferential speed are performed between the wheel set (W100) and thewheel set (W200) and between the wheel set (W300) and the wheel set(W400) at the same time, the interactive differential operation isjointly formed between the continuous variable transmission (CVT100) andthe continuous variable transmission (CVT200) and between the continuousvariable transmission (CVT300) and the continuous variable transmission(CVT400), and between the left end output shaft (1011) and the right endoutput shaft (1012) of the two output ends of the first epicyclic gearset (EG101).

FIG. 3 is schematic view illustrating a continuous variable transmission(CVT100) and a continuous variable transmission (CVT300) and acontinuous variable transmission (CVT500) being individually installedbetween the left end output shaft (1011) of the first epicyclic gear set(EG101) of FIG. 1 and the wheel set (W100) at the rear left side, thewheel set (W300) at the front left side and the wheel set (W500) at themiddle left side of the loading end, and a continuous variabletransmission (CVT200) and a continuous variable transmission (CVT400)and a continuous variable transmission (CVT600) being individuallyinstalled between the right end output shaft (1012) thereof and thewheel set (W200) at the rear right side, the wheel set (W400) at thefront right side and the wheel set (W600) at the middle right side,according to one embodiment of the present invention.

As shown in FIG. 3, the present invention utilizes the rotary output endof the rotary kinetic power source (P100) of the common load body (L100)to directly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100), the continuous variable transmission (CVT300) and thecontinuous variable transmission (CVT500) are respectively installedbetween the left end output shaft (1011) of the two output ends of thefirst epicyclic gear set (EG101) and the wheel set (W100) at the rearleft side, the wheel set (W300) at the front left side and the wheel set(W500) at the middle left side of the loading end at the left side ofthe common load body (L100), and the continuous variable transmission(CVT200) and the continuous variable transmission (CVT400) and thecontinuous variable transmission (CVT600) are installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside, the wheel set (W400) at the front right side and the wheel set(W600) at the middle right side of the loading end at the right side ofthe common load body (L100), thereby forming the drive system capable ofbeing operated in the speed differential state, which mainly consistsof:

rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice;

transmission device (T101): constituted by a transmission device havingfixed speed ratio or variable speed ratio or continuous variable speedand consisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets; installed between the rotary kinetic power source(P100) and the first epicyclic gear set (EG101); the transmission device(T101) can be optionally adopted according to actual needs;

first epicyclic gear set (EG101): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input ends of thecontinuous variable transmissions (CVT100), (CVT300), (CVT500), and theright end output shaft (1012) thereof is served to drive the input endsof the continuous variable transmissions (CVT200), (CVT400), (CVT600);

continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400),(CVT500), (CVT600): the continuous variable transmission (CVT) is in thestructural configuration capable of automatically changing speed ratioupon passively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission;

operation interface (MI100): related to a linear analog type, or digitaltype or hybrid type control device, and constituted by an operationmechanism and/or electromechanical device and/or solid state electriccircuit provided for controlling the operation status of the rotarykinetic power source (P100), and/or controlling the operation of thecontinuous variable transmission (CVT100) and/or the continuous variabletransmission (CVT200) and/or the continuous variable transmission(CVT300), and/or the continuous variable transmission (CVT400), and/orthe continuous variable transmission (CVT500) and/or the continuousvariable transmission (CVT600);

stabilize device (SDT100), (STD200), (STD300): constituted by a limitedslip differential, or a dual shaft connecting device composed of acoupling device having slip damp coupling torque, including a stabilizedevice with the dual shaft structure configured through fluid viscouseffect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect;wherein two rotating ends of the stabilize device (SDT100) arerespectively connected between the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading end,two rotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end, and tworotating ends of the stabilize device (SDT300) are respectivelyconnected between the wheel set (W500) at the middle left side and thewheel set (W600) at the middle right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) and/or the stabilize device (SDT300) installed betweenthe two opposite wheel sets at the left and right sides, the operationof the system can be stabilized; the stabilize device (SDT100) and/orthe stabilize device (SDT200) and/or the stabilize device (SDT300) canbe optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 3, the input end or theoutput end of the continuous variable transmission or the input end ofthe wheel set can be further installed with a transmission device,wherein:

transmission device (T100), (T200), (T300), (T400), (T500), (T600): theoutput end of the transmission device (T100) is served to drive thewheel set (W100) at the rear left side of the loading end, and the inputend thereof is driven by the rotary kinetic power from the output end ofthe continuous variable transmission (CVT100); the output end of thetransmission device (T200) is served to drive the wheel set (W200) atthe rear right side, and the input end thereof is driven by the rotarykinetic power from the output end of the continuous variabletransmission (CVT200); the output end of (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the output end of the transmission device (T500)is served to drive the wheel set (W500) at the middle left side of theloading end, and the input end thereof is driven by the rotary kineticpower from the output end of the continuous variable transmission(CVT500); the output end of the transmission device (T600) is served todrive the wheel set (W600) at the middle right side of the loading end,and the input end thereof is driven by the rotary kinetic power from theoutput end of the continuous variable transmission (CVT600); thetransmission devices (T100), (T200), (T300), (T400), (T500), (T600) areconsisted of mechanical gear sets, or chain sets, pulley sets or linkagerod sets, and structured as a transmission device having fixed speedratio for acceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300),(T400), (T500), (T600) can be optionally installed according to actualneeds;

According to the embodiment disclosed in FIG. 3, between the output endof the continuous variable transmission individually installed onindividual wheel set and the loading end, a clutch device can be furtherinstalled between the output end of the continuous variable transmissionto the transmission chain of the input end of the wheel set used fordistal driving, wherein:

clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600): theclutch device (CL100) is installed between the output end of thecontinuous variable transmission (CVT100) and the wheel set (W100) forcontrolling the continuous variable transmission (CVT100) to output therotary kinetic power to the wheel set (W100), the clutch device (CL200)is installed between the output end of the continuous variabletransmission (CVT200) and the wheel set (W200) for controlling thecontinuous variable transmission (CVT200) to output the rotary kineticpower to the wheel set (W200), the clutch device (CL300) is installedbetween the output end of the continuous variable transmission (CVT300)and the wheel set (W300) for controlling the continuous variabletransmission (CVT300) to output the rotary kinetic energy to the wheelset (W300), the clutch device (CL400) is installed between the outputend of the continuous variable transmission (CVT400) and the wheel set(W400) for controlling the continuous variable transmission (CVT400) tooutput the rotary kinetic energy to the wheel set (W400), the clutchdevice (CL500) is installed between the output end of the continuousvariable transmission (CVT500) and the wheel set (W500) for controllingthe continuous variable transmission (CVT500) to output the rotarykinetic power to the wheel set (W500), and the clutch device (CL600) isinstalled between the output end of the continuous variable transmission(CVT600) and the wheel set (W600) for controlling the continuousvariable transmission (CVT600) to output the rotary kinetic power to thewheel set (W600); the clutch devices (CL100), (CL200), (CL300), (CL400),(CL500), (CL600) include being controlled by manual force or centrifugalforce, or controlled through the operation interface (MI100), and formedas a clutch device or structure driven by electric force and/or magneticforce and/or mechanical force and/or pressure and/or hydraulic force forperforming transmission engaging or releasing, and having a rotary inputend and a rotary output end; the clutch devices (CL100, CL200, CL300,CL400, CL500, CL600) can be optionally installed upon actual needs;

According to the embodiment shown in FIG. 3, the common load body (L100)can be provided with one or more than one non-powered wheels accordingto actual needs;

With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the wheel set (W100) at the rear left side and the wheel set (W200)at the rear right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission(CVT100) and the continuous variable transmission (CVT200) areindividually adjusted along with the load varying of the wheel set(W100) and the wheel set (W200) of the loading end, and the two outputends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT100) and theinput end of the continuous variable transmission (CVT200); when thewheel set (W300) at the front left side and the wheel set (W400) at thefront right side of the loading end are operated in differential speeds,the speed ratios of the continuous variable transmission (CVT300) andthe continuous variable transmission (CVT400) are individually adjustedalong with the load varying of the wheel set (W300) and the wheel set(W400) of the loading end, and the left end output shaft (1011) and theright end output shaft (1012) of the two output ends of the firstepicyclic gear set (EG101) perform differential operation for adjustmentso as to drive in differential speed between the input end of thecontinuous variable transmission (CVT300) and the input end of thecontinuous variable transmission (CVT400); accordingly, when the wheelset (W500) at the middle left side and the wheel set (W600) at themiddle right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission(CVT500) and the continuous variable transmission (CVT600) areindividually adjusted along with the load varying of the wheel set(W500) and the wheel set (W600) of the loading end, and the left endoutput shaft (1011) and the right end output shaft (1012) of the twooutput ends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT500) and theinput end of the continuous variable transmission (CVT600); if theoperation in differential speed are performed between the wheel set(W100) and the wheel set (W200) and/or between the wheel set (W300) andthe wheel set (W400) and/or between the wheel set (W500) and the wheelset (W600) at the same time, the interactive differential operation isjointly formed between the continuous variable transmission (CVT100) andthe continuous variable transmission (CVT200) and/or between thecontinuous variable transmission (CVT300) and the continuous variabletransmission (CVT400) and/or between the continuous variabletransmission (CVT500) and the continuous variable transmission (CVT600),and between the left end output shaft (1011) and the right end outputshaft (1012) of the two output ends of the first epicyclic gear set(EG101).

According to the multi-CVT drive system having epicyclic gear setillustrated in previous embodiment accompanied with FIG. 1, FIG. 2 andFIG. 3, when more wheel sets sharing the same epicyclic gear set andhaving individual continuous variable transmission at the loading end,the structured system can be formed with the same means disclosed above,wherein the limited slip differential or the stabilize device composedof the dual shaft connecting device having slip coupling torqueinstalled at opposite locations horizontally and coaxially defined attwo sides along the driving direction of the common load body (L100) andbetween the same transmission operation sets, or the transmission deviceor clutch device installed between the individual CVT to the wheel setcan be all or partially installed or none of the above is installed.

FIG. 4 is a schematic view illustrating FIG. 2 being further installedwith a first epicyclic gear seat (EG101) and a second epicyclic gear set(EG102) driven by the rotary kinetic power of the rotary kinetic powersource (P100), and a continuous variable transmission (CVT100) beinginstalled between the left end output shaft (1011) of the firstepicyclic gear set (EG101) and the wheel set (W100) at the rear leftside of the loading end, a continuous variable transmission (CVT200)being installed between the right end output shaft (1012) and the wheel(W200) at the rear right side, and a continuous variable transmission(CVT300) being installed between the left end output shaft (1021) of thesecond epicyclic gear set (EG102) and the wheel set (W300) at the frontleft side, and a continuous variable transmission (CVT400) beinginstalled between the right end output shaft (1022) and the wheel set(W400) at the front right side, according to one embodiment of thepresent invention.

As shown in FIG. 4, the present invention utilizes the rotary output endof the rotary kinetic power source (P100) of the common load body (L100)to directly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) is individually installed between the left end output shaft(1011) of the two output ends of the first epicyclic gear set (EG101)and the wheel set (W100) at the rear left side of the loading end at theleft side of the common load body (L100), and the continuous variabletransmission (CVT200) is individually installed between the right endoutput shaft (1012) and the wheel set (W200) at the rear right side ofthe loading end at the right side of the common load body (L100); therotary output end of the rotary kinetic power source (P100) is directlyor through the transmission device (T101) to drive the second epicyclicgear set (EG102), and the continuous variable transmission (CVT300) isindividually installed between the left end output shaft (1021) of thetwo output ends of the second epicyclic gear set (EG102) and the wheelset (W300) at the front left side of the loading end at the left side ofthe common load body (L100), and the continuous variable transmission(CVT400) is individually installed between the right end output shaft(1022) and the wheel set (W400) at the front right side of the loadingend at the right side of the common load body (L100), thereby formingthe drive system capable of being operated in the differential speedstate, which mainly consists of:

rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice;

transmission device (T101): constituted by a transmission device havingfixed speed ratio or variable speed ratio or continuous variable speedand consisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets; installed between the rotary kinetic power source(P100) and the first epicyclic gear set (EG101) and the second epicyclicgear set (EG102); the transmission device (T101) can be optionallyadopted according to actual needs;

first epicyclic gear set (EG101): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT100), and the right end outputshaft (1012) thereof is served to drive the input end of the continuousvariable transmission (CVT200);

second epicyclic gear set (EG102): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by theengine, or driven by the engine through the transmission device (T101);the left end output shaft (1021) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT300), and the right end outputshaft (1022) is served to drive the input end of the continuous variabletransmission (CVT400);

continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400):the continuous variable transmission (CVT) is in the structuralconfiguration capable of automatically changing speed ratio uponpassively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission;

operation interface (MI100): related to a linear analog type, or digitaltype or hybrid type control device, and constituted by an operationmechanism and/or electromechanical device and/or solid state electriccircuit, provided for controlling the operation status of the rotarykinetic power source (P100), and/or controlling the operation of thecontinuous variable transmission (CVT 100) and/or the continuousvariable transmission (CVT200) and/or the continuous variabletransmission (CVT300), and/or the continuous variable transmission(CVT400);

stabilize device (SDT100), (STD200): constituted by a limited slipdifferential, or a dual shaft connecting device composed of a couplingdevice having slip damp coupling torque, including a stabilize devicewith the dual shaft structure configured through fluid viscous effect,hydrodynamic damp effect, mechanical friction effect, electromagneticvortex effect or power generation reverse torque effect; wherein tworotating ends of the stabilize device (SDT100) are respectivelyconnected between the wheel set (W100) at the rear left side and thewheel set (W200) at the rear right side of the loading end, and tworotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) installed between the two opposite wheel sets at theleft and right sides, the operation of the system can be stabilized; thestabilize device (SDT100) and/or the stabilize device (SDT200) can beoptionally installed according to actual needs;

According to the embodiment disclosed in FIG. 4, the input end or theoutput end of the continuous variable transmission or the input end ofthe wheel set can be further installed with a transmission device,wherein:

transmission device (T100), (T200), (T300), (T400): the output end ofthe transmission device (T100) is served to drive the wheel set (W100)at the rear left side of the loading end, and the input end thereof isdriven by the rotary kinetic power from the output end of the continuousvariable transmission (CVT100); the output end of the transmissiondevice (T200) is served to drive the wheel set (W200) at the rear rightside, and the input end thereof is driven by the rotary kinetic powerfrom the output end of the continuous variable transmission (CVT200);the output end of the transmission device (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the transmission devices (T100), (T200), (T300),(T400) are consisted of mechanical gear sets, or chain sets, pulley setsor linkage rod sets, and structured as a transmission device havingfixed speed ratio for acceleration or deceleration or changingdirection, or a manually-operated or automatic or semi-automatic speedratio or belt type continuous variable transmission, or a hydraulic typetorque converter; the transmission devices (T100), (T200) and/or (T300),(T400) can be optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 4, between the output endof the continuous variable transmission individually installed onindividual wheel set and the loading end, a clutch device can be furtherinstalled between the output end of the continuous variable transmissionto the transmission chain of the input end of the wheel set used fordistal driving, wherein:

clutch device (CL100), (CL200), (CL300), (CL400): the clutch device(CL100) is installed between the output end of the continuous variabletransmission (CVT100) and the wheel set (W100) for controlling thecontinuous variable transmission (CVT100) to output the rotary kineticpower to the wheel set (W100), the clutch device (CL200) is installedbetween the output end of the continuous variable transmission (CVT200)and the wheel set (W200) for controlling the continuous variabletransmission (CVT200) to output the rotary kinetic power to the wheelset (W200), the clutch device (CL300) is installed between the outputend of the continuous variable transmission (CVT300) and the wheel set(W300) for controlling the continuous variable transmission (CVT300) tooutput the rotary kinetic energy to the wheel set (W300), and the clutchdevice (CL400) is installed between the output end of the continuousvariable transmission (CVT400) and the wheel set (W400) for controllingthe continuous variable transmission (CVT400) to output the rotarykinetic energy to the wheel set (W400); the clutch devices (CL100),(CL200), (CL300), (CL400) include being controlled by manual force orcentrifugal force, or controlled through the operation interface(MI100), and formed as a clutch device or structure driven by electricforce and/or magnetic force and/or mechanical force and/or pressureand/or hydraulic force for performing transmission engaging orreleasing, and having a rotary input end and a rotary output end; theclutch devices (CL100, CL200, CL300, CL400) can be optionally installedupon actual needs;

According to the embodiment shown in FIG. 4, the common load body (L100)can be provided with one or more than one non-powered wheels accordingto actual needs;

With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the wheel set (W100) at the rear left side and the wheel set (W200)at the rear right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission(CVT100) and the continuous variable transmission (CVT200) areindividually adjusted along with the load varying of the wheel set(W100) and the wheel set (W200) of the loading end, and the two outputends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT100) and theinput end of the continuous variable transmission (CVT200); when thewheel set (W300) at the front left side and the wheel set (W400) at thefront right side of the loading end are operated in differential speeds,the speed ratios of the continuous variable transmission (CVT300) andthe continuous variable transmission (CVT400) are individually adjustedalong with the load varying of the wheel set (W300) and the wheel set(W400) of the loading end, and the left end output shaft (1021) and theright end output shaft (1022) of the two output ends of the secondepicyclic gear set (EG102) perform differential operation for adjustmentso as to drive in differential speed between the input end of thecontinuous variable transmission (CVT300) and the input end of thecontinuous variable transmission (CVT400).

FIG. 5 is a schematic view illustrating FIG. 3 being further installedwith a first epicyclic gear seat (EG101), a second epicyclic gear set(EG102) and a third epicyclic gear set (EG103) driven by the rotarykinetic power of the rotary kinetic power source (P100), and acontinuous variable transmission (CVT100) being installed between theleft end output shaft (1011) of the first epicyclic gear set (EG101) andthe wheel set (W100) at the rear left side of the loading end, acontinuous variable transmission (CVT200) being installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside, a continuous variable transmission (CVT300) being installedbetween the left end output shaft (1021) of the second epicyclic gearset (EG102) and the wheel set (W300) at the front left side, acontinuous variable transmission (CVT400) being installed between theright end output shaft (1022) and the wheel set (W400) at the frontright side, a continuous variable transmission (CVT500) being installedbetween the left end output shaft (1031) of the third epicyclic gear set(EG103) and the wheel set (W500) at the middle left side, and acontinuous variable transmission (CVT600) being installed between theright end output shaft (1032) and the wheel set (W600) at the middleright side, according to one embodiment of the present invention.

As shown in FIG. 5, the present invention utilizes the rotary output endof the rotary kinetic power source (P100) of the common load body (L100)to directly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) is individually installed between the left end output shaft(1011) of the two output ends of the first epicyclic gear set (EG101)and the wheel set (W100) at the rear left side of the loading end at theleft side of the common load body (L100), and the continuous variabletransmission (CVT200) is individually installed between the right endoutput shaft (1012) and the wheel set (W200) at the rear right side ofthe loading end at the right side of the common load body (L100); andutilizes the rotary output end of the rotary kinetic power source (P100)to directly or through the transmission device (T101) to drive thesecond epicyclic gear set (EG102), and the continuous variabletransmission (CVT300) is individually installed between the left endoutput shaft (1021) of the two output ends of the second epicyclic gearset (EG102) and the wheel set (W300) at the front left side of theloading end at the left side of the common load body (L100), and thecontinuous variable transmission (CVT400) is individually installedbetween the right end output shaft (1022) and the wheel set (W400) atthe front right side of the loading end at the right side of the commonload body (L100); and utilizes the rotary output end of the rotarykinetic power source (P100) to directly or through the transmissiondevice (T101) to drive the third epicyclic gear set (EG103), and thecontinuous variable transmission (CVT500) is individually installedbetween the left end output shaft (1031) of the two output ends of thethird epicyclic gear set (EG103) and the wheel set (W500) at the middleleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT600) isindividually installed between the right end output shaft (1032) and thewheel set (W600) at the middle right side of the loading end at theright side of the common load body (L100), thereby forming the drivesystem capable of being operated in the differential speed state, whichmainly consists of:

rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice;

transmission device (T101): constituted by a transmission device havingfixed speed ratio or variable speed ratio or continuous variable speedand consisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets; installed between the rotary kinetic power source(P100) and the first epicyclic gear set (EG101) and the second epicyclicgear set (EG102) and the third epicyclic gear set (EG103); thetransmission device (T101) can be optionally adopted according to actualneeds;

first epicyclic gear set (EG101): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmissions (CVT100), and the right end outputshaft (1012) thereof is served to drive the input end of the continuousvariable transmission (CVT200);

second epicyclic gear set (EG102): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by theengine, or driven by the engine through the transmission device (T101);the left end output shaft (1021) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT300), and the right end outputshaft (1022) thereof is served to drive the input end of the continuousvariable transmission (CVT400);

third epicyclic gear set (EG103): constituted by an epicyclic gear sethaving an input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by theengine, or driven by the engine through the transmission device (T101);the left end output shaft (1031) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT500), and the right end outputshaft (1032) thereof is served to drive the input end of the continuousvariable transmission (CVT600);

continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400),(CVT500), (CVT600): the continuous variable transmission (CVT) is in thestructural configuration capable of automatically changing speed ratioupon passively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission;

operation interface (M1100): related to a linear analog type, or digitaltype or hybrid type control device, and constituted by an operationmechanism and/or electromechanical device and/or solid state electriccircuit, provided for controlling the operation status of the rotarykinetic power source (P100), and/or controlling the operation of thecontinuous variable transmission (CVT100) and/or the continuous variabletransmission (CVT200) and/or the continuous variable transmission(CVT300), and/or the continuous variable transmission (CVT400), and/orthe continuous variable transmission (CVT500), and/or the continuousvariable transmission (CVT600);

stabilize device (SDT100), (STD200), (STD300): constituted by a limitedslip differential, or a dual shaft connecting device composed of acoupling device having slip damp coupling torque, including a stabilizedevice with the dual shaft structure configured through fluid viscouseffect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect;wherein two rotating ends of the stabilize device (SDT100) arerespectively connected between the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading end,two rotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end, and tworotating ends of the stabilize device (SDT300) are respectivelyconnected between the wheel set (W500) at the middle left side and thewheel set (W600) at the middle right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) and/or the stabilize device (SDT300) installed betweenthe two opposite wheel sets at the left and right sides, the operationof the system can be stabilized; the stabilize device (SDT100) and/orthe stabilize device (SDT200) and/or the stabilize device (SDT300) canbe optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 5, the input end or theoutput end of the continuous variable transmission or the input end ofthe wheel set can be further installed with a transmission device,wherein:

transmission device (T100), (T200), (T300), (T400), (T500), (T600): theoutput end of the transmission device (T100) is served to drive thewheel set (W100) at the rear left side of the loading end, and the inputend thereof is driven by the rotary kinetic power from the output end ofthe continuous variable transmission (CVT100); the output end of thetransmission device (T200) is served to drive the wheel set (W200) atthe rear right side, and the input end thereof is driven by the rotarykinetic power from the output end of the continuous variabletransmission (CVT200); the output end of (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the output end of the transmission device (T500)is served to drive the wheel set (W500) at the middle left side of theloading end, and the input end thereof is driven by the rotary kineticpower from the output end of the continuous variable transmission(CVT500); the output end of the transmission device (T600) is served todrive the wheel set (W600) at the middle right side of the loading end,and the input end is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT600); the transmissiondevices (T100), (T200), (T300), (T400), (T500), (T600) are consisted ofmechanical gear sets, or chain sets, pulley sets or linkage rod sets,and structured as a transmission device having fixed speed ratio foracceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300),(T400), (T500), (T600) can be optionally installed according to actualneeds;

According to the embodiment disclosed in FIG. 5, between the output endof the continuous variable transmission individually installed onindividual wheel set and the loading end, a clutch device can be furtherinstalled between the output end of the continuous variable transmissionto the transmission chain of the input end of the wheel set used fordistal driving, wherein:

clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600): theclutch device (CL100) is installed between the output end of thecontinuous variable transmission (CVT100) and the wheel set (W100) forcontrolling the continuous variable transmission (CVT100) to output therotary kinetic power to the wheel set (W100), the clutch device (CL200)is installed between the output end of the continuous variabletransmission (CVT200) and the wheel set (W200) for controlling thecontinuous variable transmission (CVT200) to output the rotary kineticpower to the wheel set (W200), the clutch device (CL300) is installedbetween the output end of the continuous variable transmission (CVT300)and the wheel set (W300) for controlling the continuous variabletransmission (CVT300) to output the rotary kinetic energy to the wheelset (W300), the clutch device (CL400) is installed between the outputend of the continuous variable transmission (CVT400) and the wheel set(W400) for controlling the continuous variable transmission (CVT400) tooutput the rotary kinetic energy to the wheel set (W400), the output endclutch device (CL500) is installed between the output end of thecontinuous variable transmission (CVT500) and the wheel set (W500) forcontrolling the continuous variable transmission (CVT500) to output therotary kinetic power to the wheel set (W500), and the output end clutchdevice (CL600) is installed between the output end of the continuousvariable transmission (CVT600) and the wheel set (W600) for controllingthe continuous variable transmission (CVT600) to output the rotarykinetic power to the wheel set (W600); the clutch devices (CL100),(CL200), (CL300), (CL400), (CL500), (CL600) include being controlled bymanual force or centrifugal force, or controlled through the operationinterface (MI100), and formed as a clutch device or structure driven byelectric force and/or magnetic force and/or mechanical force and/orpressure and/or hydraulic force for performing transmission engaging orreleasing, and having a rotary input end and a rotary output end; theclutch devices (CL100, CL200, CL300, CL400, CL500, CL600) can beoptionally installed upon actual needs;

According to the embodiment shown in FIG. 5, the common load body (L100)can be provided with one or more than one non-powered wheels accordingto actual needs;

With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the wheel set (W100) at the rear left side and the wheel set (W200)at the rear right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individuallyadjusted along with the load varying of the wheel set (W100) and thewheel set (W200) of the loading end, and the two output ends of thefirst epicyclic gear set (EG101) perform differential operation foradjustment, so as to drive in differential speed between the input endof the continuous variable transmission (CVT100) and the input end ofthe continuous variable transmission (CVT200); when the wheel set (W300)at the front left side and the wheel set (W400) at the front right sideof the loading end are operated in differential speeds, the speed ratiosof the continuous variable transmission (CVT300) and the continuousvariable transmission (CVT400) are individually adjusted along with theload varying of the wheel set (W300) and the wheel set (W400) of theloading end, and the left end output shaft (1021) and the right endoutput shaft (1022) of the two output ends of the second epicyclic gearset (EG102) perform differential operation for adjustment so as to drivein differential speed between the input end of the continuous variabletransmission (CVT300) and the input end of the continuous variabletransmission (CVT400); accordingly, when the wheel set (W500) at themiddle left side and the wheel set (W600) at the middle right side ofthe loading end are operated in differential speeds, the speed ratios ofthe continuous variable transmission (CVT500) and the continuousvariable transmission (CVT600) are individually adjusted along with theload varying of the wheel set (W500) and the wheel set (W600) of theloading end, and the left end output shaft (1031) and the right endoutput shaft (1032) of the two output ends of the third epicyclic gearset (EG103) perform differential operation for adjustment, so as todrive in differential speed between the input end of the continuousvariable transmission (CVT500) and the input end of the continuousvariable transmission (CVT600).

What shall be explained is that FIG. 4 and FIG. 5 are examples of themulti-CVT drive system having epicyclic gear set, when being applied ina loading end wheel set having more individual epicyclic gear sets andcontinuous variable transmissions, the structured system can be formedwith the same means disclosed above, wherein the limited slipdifferential or the stabilize device composed of the dual shaftconnecting device having slip coupling torque installed at oppositelocations horizontally and coaxially defined at two sides along thedriving direction of the common load body (L100) and between the sametransmission operation sets, or the transmission device, or the clutchdevice installed between the individual CVT to the wheel set can be allor partially installed or none of the above is installed.

1. A multi-CVT drive system having epicyclic gear set, which utilizesthe rotary kinetic power of a rotary kinetic power source to directlydrive the epicyclic gear set, or to drive the epicyclic gear set througha transmission device, then a continuous variable transmission (CVT) isindividually installed between two output shafts of the epicyclic gearset and the load driven thereby, so the wheel set of the driven load isenabled to randomly perform variation of the driving speed ratio and thedriving torque, so as to drive the combined common load; the mentionedcommon load body (L100) is mainly defined as the frame body of avehicle, and is installed with a rotary kinetic power source, relativeoperation and transmission interface devices, and installed with loadingwheel sets driven by the rotary kinetic power source and installed withnon-powered wheels not being driven by the rotary kinetic power source(P100) according to actual needs, thereby jointly carrying the commonload body (L100); a limited slip differential or a stabilize devicecomposed of a dual shaft connecting device having slip coupling torquecan be further installed at opposite locations horizontally andcoaxially defined at two sides along the driving direction of the commonload body (L100) and between the same transmission operation sets, andwhen the differential operation is performed between two loads, thestabilize device is served to stabilize the operation of the drivesystem; the stabilize device includes a limited slip differential, or acoupling torque dual shaft connecting device composed of a couplingdevice having slip damp, e.g. a dual shaft structure configured by fluidviscous effect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect,and two rotating ends of the stabilize device are respectively connectedto: one or more than one location of the opposite locations horizontallyand coaxially defined on the following transmission operation sets,including: (1) installed between wheel set rotation parts oppositely atthe left side and the right side; (2) installed between opposite outputends of the continuous variable transmissions at the left side and theright side; (3) installed between opposite output ends of clutch devicesat the left side and the right side; (4) installed between the input endor the output end oppositely at the left side and the right side of thetransmission device; (5) installed between the rotation parts at leftside and the right side of the wheel set; by installing the mentionedstabilize device for the driving operation, when the load varying atindividual loading end, or the control required by the operation stateof the opposite continuous variable transmissions, or the unstable stateduring operation, the stabilize device can be served to stabilize thesystem; the stabilize device can be optionally installed according toactual needs; Between the input end of individual continuous variabletransmission to the wheel set of the loading end, a stepped orcontinuous variable transmission having fixed speed ratio foracceleration or deceleration or changing direction can be furtherinstalled at one or more than one of following locations, including: (1)installed at the input end of the continuous variable transmission; (2)installed at the output end of the continuous variable transmission; (3)installed at the input end of the clutch device; (4) installed at theoutput end of the clutch device; (5) installed at the input end of thewheel set at the loading end; the mentioned transmission device isconsisted of mechanical gear sets, or chain sets or pulley sets orlinkage rod sets, and composed of a transmission device having fixedspeed ratio for acceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio varying orbelt type continuous variable transmission, or a hydraulic torqueconverter; the transmission device can be optionally installed accordingto actual needs; According to the multi-CVT drive system havingepicyclic gear set, between the input end of individual continuousvariable transmission and the wheel set of the loading end, a clutchdevice can be further installed at one or more than one of followinglocations, including: (1) installed at the input end of the continuousvariable transmission; (2) installed at the output end of the continuousvariable transmission; (3) installed at the input end of the clutchdevice; (4) installed at the output end of the clutch device; (5)installed at the input end of the wheel set at the loading end; thementioned clutch device is controlled by manual force or centrifugalforce, or controlled by the operation interface, and can be served as aclutch device or structure having function of performing transmissionengaging or releasing while being driven by electric force and/ormagnetic force and/or mechanical force and/or pressure and/or hydraulicforce, and has a rotary input end and a rotary output end; the multi-CVTdrive system having epicyclic gear set of the present invention can beapplied to the wheel type vehicles, or track type vehicles, or railvehicles, or ships driven by at least two individual motors, or humanflow or logistics conveyors, or industrial equipments driven by at leasttwo motor sets.
 2. A multi-CVT drive system having epicyclic gear set asclaimed in claim 1, wherein it utilizes the rotary output end of therotary kinetic power source (P100) of the common load body (L100) todirectly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) is installed between the left end output shaft (1011) of thetwo output ends of the first epicyclic gear set (EG101) and the leftside wheel set (W100) of the loading end of the common load body (L100),and the continuous variable transmission (CVT200) is installed betweenthe right end output shaft (1012) of the two output ends of the firstepicyclic gear set (EG101) and the right side wheel set (W200), therebyforming the drive system capable of being operated in the differentialspeed and variable speed state, which mainly consists of: rotary kineticpower source (P100): constituted by a power source outputting kineticpower through rotation, e.g. an internal combustion engine, externalcombustion engine, spring power source, hydraulic power source, pressurepower source, flywheel power source or manual force, or animal force,wind power source, and/or composed of a AC or DC, brush or brushless,synchronous or non-synchronous, internal rotating or external rotatingtype rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice; transmission device (T101): constituted by a transmission devicehaving fixed speed ratio or variable speed ratio or continuous variablespeed and consisted of mechanical gear sets, or chain sets or pulleysets or linkage rod sets; installed between the rotary kinetic powersource (P100) and the first epicyclic gear set (EG101); the transmissiondevice (T101) can be optionally adopted according to actual needs; firstepicyclic gear set (EG101): constituted by an epicyclic gear set havingan input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input end of thecontinuous variable transmission (CVT100), the right end output shaft(1012) is served to drive the input end of the continuous variabletransmission (CVT200); continuous variable transmission (CVT100),(CVT200): the continuous variable transmission (CVT) is in thestructural configuration capable of automatically changing speed ratioupon passively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission; operationinterface (MI100): related to a linear analog type, or digital type orhybrid type control device, and constituted by an operation mechanismand/or electromechanical device and/or solid state electric circuit,provided for controlling the operation status of the rotary kineticpower source (P100), and/or controlling the operation of the continuousvariable transmission (CVT100) and/or the continuous variabletransmission (CVT200); stabilize device (SDT100): constituted by alimited slip differential, or a dual shaft connecting device composed ofa coupling device having slip damp coupling torque, including astabilize device with the dual shaft structure configured through fluidviscous effect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect;wherein two rotating ends thereof are respectively connected between theleft side wheel set (W100) and the right side wheel set (W200) of theloading end; during the driving operation, if the load varying at theindividual two sides of the loading end causes the unstable operation,with the slip damp coupling torque of the stabilize device (SDT100)installed between the wheel sets at the left and right sides, theoperation of the system can be stabilized; the stabilize device (SDT100)can be optionally installed according to actual needs; transmissiondevice (T100), (T200): the output end of the transmission device (T100)is served to drive the left side wheel set (W100) of the loading end,and the input end thereof is driven by the rotary kinetic power from theoutput end of the continuous variable transmission (CVT100); the outputend of the transmission device (T200) is served to drive the right sidewheel set (W200), and the input end thereof is driven by the rotarykinetic power from the output end of the continuous variabletransmission (CVT200); the transmission device (T100) and thetransmission device (T200) are consisted of mechanical gear sets, orchain sets, pulley sets or linkage rod sets, and structured as atransmission device having fixed speed ratio for acceleration ordeceleration or changing direction, or a manually-operated or automaticor semi-automatic speed ratio or belt type continuous variabletransmission, or a hydraulic type torque converter; the transmissiondevices (T100), (T200) can be optionally installed according to actualneeds; clutch device (CL100), (CL200): the clutch device (CL100) isinstalled between the output end of the continuous variable transmission(CVT100) and the wheel set (W100) for controlling the continuousvariable transmission (CVT100) to output the rotary kinetic power to thewheel set (W100), and the clutch device (CL200) is installed between theoutput end of the continuous variable transmission (CVT200) and thewheel set (W200) for controlling the continuous variable transmission(CVT200) to output the rotary kinetic power to the wheel set (W200); theclutch device (CL100) and the clutch device (CL200) include beingcontrolled by manual force or centrifugal force, or controlled throughthe operation interface (MI100), and formed as a clutch device orstructure driven by electric force and/or magnetic force and/ormechanical force and/or pressure and/or hydraulic force for performingtransmission engaging or releasing, and having a rotary input end and arotary output end; the clutch devices (CL100, CL200) can be optionallyinstalled upon actual needs; common load body (L100) can be providedwith one or more than one non-powered wheels according to actual needs;With the operation of the mentioned devices, when the common load body(L100) is driven to operate by the rotary kinetic power source (P100),and the left side wheel set (W100) and the right side wheel set (W200)of the loading end are operated in differential speeds, the speed ratiosof the continuous variable transmission (CVT100) and the continuousvariable transmission (CVT200) are individually adjusted along with theload varying of the wheel set (W100) and the wheel set (W200) of theloading end, and the two output ends of the first epicyclic gear set(EG101) perform differential operation for adjustment, so as to drive indifferential speed between the input end of the continuous variabletransmission (CVT100) and the input end of the continuous variabletransmission (CVT200).
 3. A multi-CVT drive system having epicyclic gearset as claimed in claim 2, wherein it utilizes the rotary output end ofthe rotary kinetic power source (P100) of the common load body (L100) todirectly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) and the continuous variable transmission (CVT300) arerespectively installed between the left end output shaft (1011) of thetwo output ends of the first epicyclic gear set (EG101) and the wheelset (W100) at the rear left side and the wheel set (W300) at the frontleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT200) and thecontinuous variable transmission (CVT400) are installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside and the wheel set (W400) at the front right side of the loading endat the right side of the common load body (L100), thereby forming thedrive system capable of being operated in the speed differential state,which mainly consists of: rotary kinetic power source (P100):constituted by a power source outputting kinetic power through rotation,e.g. an internal combustion engine, external combustion engine, springpower source, hydraulic power source, pressure power source, flywheelpower source or manual force, or animal force, wind power source, and/orcomposed of a AC or DC, brush or brushless, synchronous ornon-synchronous, internal rotating or external rotating type rotarymotor installed with relative control devices and electrically driven bypower supply and/or storage device; the output end thereof includesoutputting directly or outputting through a clutch device; transmissiondevice (T101): constituted by a transmission device having fixed speedratio or variable speed ratio or continuous variable speed and consistedof mechanical gear sets, or chain sets or pulley sets or linkage rodsets; installed between the rotary kinetic power source (P100) and thefirst epicyclic gear set (EG101); the transmission device (T101) can beoptionally adopted according to actual needs; first epicyclic gear set(EG101): constituted by an epicyclic gear set having an input shaft andtwo output shafts capable of differentially operating, directly drivenby the rotary kinetic power provided by an engine, or driven by theengine through the transmission device (T101); the left end output shaft(1011) of the two output shafts capable of differentially operating isserved to drive the input ends of the continuous variable transmission(CVT100) and the continuous variable transmission (CVT300), and theright end output shaft (1012) thereof is served to drive the input endsof the continuous variable transmission (CVT200) and the continuousvariable transmission (CVT400); continuous variable transmission(CVT100), (CVT200), (CVT300), (CVT400): the continuous variabletransmission (CVT) is in the structural configuration capable ofautomatically changing speed ratio upon passively receiving the drivingrotational speed and/or the loading torque, or is subject to theexternal control to actively change speed ratio, such as a rubber belttype, metal belt type, chain type continuous variable transmission, oran electric continuous variable transmission (ECVT), or a friction disktype, or a conventional different-shaft type continuous variabletransmission; operation interface (MI100): related to a linear analogtype, or digital type or hybrid type control device, and constituted byan operation mechanism and/or electromechanical device and/or solidstate electric circuit, provided for controlling the operation status ofthe rotary kinetic power source (P100), and/or controlling the operationof the continuous variable transmission (CVT100) and/or the continuousvariable transmission (CVT200) and/or the continuous variabletransmission (CVT300) and/or the continuous variable transmission(CVT400); stabilize device (SDT100), (STD200): constituted by a limitedslip differential, or a dual shaft connecting device composed of acoupling device having slip damp coupling torque, including a stabilizedevice with the dual shaft structure configured through fluid viscouseffect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect;wherein two rotating ends of the stabilize device (SDT100) arerespectively connected between the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading end,and two rotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) installed between the two opposite wheel sets at theleft and right sides, the operation of the system can be stabilized; thestabilize device (SDT100) and/or the stabilize device (SDT200) can beoptionally installed according to actual needs; transmission device(T100), (T200), (T300), (T400): the output end of the transmissiondevice (T100) is served to drive the wheel set (W100) at the rear leftside of the loading end, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT100); the output end of the transmission device (T200)is served to drive the wheel set (W200) at the rear right side, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT200); the output end ofthe transmission device (T300) is served to drive the wheel set (W300)at the front left side of the loading end, and the input end thereof isdriven by the rotary kinetic power from the output end of the continuousvariable transmission (CVT300); the output end of the transmissiondevice (T400) is served to drive the wheel set (W400) at the front rightside, and the input end thereof is driven by the rotary kinetic powerfrom the output end of the continuous variable transmission (CVT400);the transmission devices (T100), (T200), (T300), (T400) are consisted ofmechanical gear sets, or chain sets, pulley sets or linkage rod sets,and structured as a transmission device having fixed speed ratio foracceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300), (T400)can be optionally installed according to actual needs; clutch device(CL100), (CL200), (CL300), (CL400): the clutch device (CL100) isinstalled between the output end of the continuous variable transmission(CVT100) and the wheel set (W100) for controlling the continuousvariable transmission (CVT100) to output the rotary kinetic power to thewheel set (W100), the clutch device (CL200) is installed between theoutput end of the continuous variable transmission (CVT200) and thewheel set (W200) for controlling the continuous variable transmission(CVT200) to output the rotary kinetic power to the wheel set (W200), theclutch device (CL300) is installed between the output end of thecontinuous variable transmission (CVT300) and the wheel set (W300) forcontrolling the continuous variable transmission (CVT300) to output therotary kinetic energy to the wheel set (W300), and the clutch device(CL400) is installed between the output end of the continuous variabletransmission (CVT400) and the wheel set (W400) for controlling thecontinuous variable transmission (CVT400) to output rotation kineticenergy to the wheel set (W400); the clutch devices (CL100), (CL200),(CL300), (CL400) include being controlled by manual force or centrifugalforce, or controlled through the operation interface (MI100), and formedas a clutch device or structure driven by electric force and/or magneticforce and/or mechanical force and/or pressure and/or hydraulic force forperforming transmission engaging or releasing, and having a rotary inputend and a rotary output end; the clutch devices (CL100, CL200, CL300,CL400) can be optionally installed upon actual needs; common load body(L100) can be provided with one or more than one non-powered wheelsaccording to actual needs; with the operation of the mentioned devices,when the common load body (L100) is driven to operate by the rotarykinetic power source (P100), and the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading endare operated in differential speeds, the speed ratios of the continuousvariable transmission (CVT100) and the continuous variable transmission(CVT200) are individually adjusted along with the load varying of thewheel set (W100) and the wheel set (W200) of the loading end, and thetwo output ends of the first epicyclic gear set (EG101) performdifferential operation for adjustment, so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT100) and the input end of the continuous variable transmission(CVT200); when the wheel set (W300) at the front left side and the wheelset (W400) at the front right side of the loading end are operated indifferential speeds, the speed ratios of the continuous variabletransmission (CVT300) and the continuous variable transmission (CVT400)are individually adjusted along with the load varying of the wheel set(W300) and the wheel set (W400) of the loading end, and the left endoutput shaft (1011) and the right end output shaft (1012) of the twooutput ends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT300) and theinput end of the continuous variable transmission (CVT400); if theoperation in differential speed are performed between the wheel set(W100) and the wheel set (W200) and between the wheel set (W300) and thewheel set (W400) at the same time, the interactive differentialoperation is jointly formed between the continuous variable transmission(CVT100) and the continuous variable transmission (CVT200) and betweenthe continuous variable transmission (CVT300) and the continuousvariable transmission (CVT400), and between the left end output shaft(1011) and the right end output shaft (1012) of the two output ends ofthe first epicyclic gear set (EG101).
 4. A multi-CVT drive system havingepicyclic gear set as claimed in claim 2, wherein it utilizes the rotaryoutput end of the rotary kinetic power source (P100) of the common loadbody (L100) to directly or through the transmission device (T101) todrive the first epicyclic gear set (EG101), and the continuous variabletransmission (CVT100), the continuous variable transmission (CVT300) andthe continuous variable transmission (CVT500) are respectively installedbetween the left end output shaft (1011) of the two output ends of thefirst epicyclic gear set (EG101) and the wheel set (W100) at the rearleft side, the wheel set (W300) at the front left side and the wheel set(W500) at the middle left side of the loading end at the left side ofthe common load body (L100), and the continuous variable transmission(CVT200) and the continuous variable transmission (CVT400) and thecontinuous variable transmission (CVT600) are installed between theright end output shaft (1012) and the wheel set (W200) at the rear rightside, the wheel set (W400) at the front right side and the wheel set(W600) at the middle right side of the loading end at the right side ofthe common load body (L100), thereby forming the drive system capable ofbeing operated in the speed differential state, which mainly consistsof: rotary kinetic power source (P100): constituted by a power sourceoutputting kinetic power through rotation, e.g. an internal combustionengine, external combustion engine, spring power source, hydraulic powersource, pressure power source, flywheel power source or manual force, oranimal force, wind power source, and/or composed of a AC or DC, brush orbrushless, synchronous or non-synchronous, internal rotating or externalrotating type rotary motor installed with relative control devices andelectrically driven by power supply and/or storage device; the outputend thereof includes outputting directly or outputting through a clutchdevice; transmission device (T101): constituted by a transmission devicehaving fixed speed ratio or variable speed ratio or continuous variablespeed and consisted of mechanical gear sets, or chain sets or pulleysets or linkage rod sets; installed between the rotary kinetic powersource (P100) and the first epicyclic gear set (EG101); the transmissiondevice (T101) can be optionally adopted according to actual needs; firstepicyclic gear set (EG101): constituted by an epicyclic gear set havingan input shaft and two output shafts capable of differentiallyoperating, directly driven by the rotary kinetic power provided by anengine, or driven by the engine through the transmission device (T101);the left end output shaft (1011) of the two output shafts capable ofdifferentially operating is served to drive the input ends of thecontinuous variable transmissions (CVT100), (CVT300), (CVT500), and theright end output shaft (1012) thereof is served to drive the input endsof the continuous variable transmissions (CVT200), (CVT400), (CVT600);continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400),(CVT500), (CVT600): the continuous variable transmission (CVT) is in thestructural configuration capable of automatically changing speed ratioupon passively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission; operationinterface (MI100): related to a linear analog type, or digital type orhybrid type control device, and constituted by an operation mechanismand/or electromechanical device and/or solid state electric circuitprovided for controlling the operation status of the rotary kineticpower source (P100), and/or controlling the operation of the continuousvariable transmission (CVT100) and/or the continuous variabletransmission (CVT200) and/or the continuous variable transmission(CVT300), and/or the continuous variable transmission (CVT400), and/orthe continuous variable transmission (CVT500) and/or the continuousvariable transmission (CVT600); stabilize device (SDT100), (STD200),(STD300): constituted by a limited slip differential, or a dual shaftconnecting device composed of a coupling device having slip dampcoupling torque, including a stabilize device with the dual shaftstructure configured through fluid viscous effect, hydrodynamic dampeffect, mechanical friction effect, electromagnetic vortex effect orpower generation reverse torque effect; wherein two rotating ends of thestabilize device (SDT100) are respectively connected between the wheelset (W100) at the rear left side and the wheel set (W200) at the rearright side of the loading end, two rotating ends of the stabilize device(SDT200) are respectively connected between the wheel set (W300) at thefront left side and the wheel set (W400) at the front right side of theloading end, and two rotating ends of the stabilize device (SDT300) arerespectively connected between the wheel set (W500) at the middle leftside and the wheel set (W600) at the middle right side of the loadingend; during the driving operation, if the load varying at the individualtwo sides of the loading end causes the unstable operation, with theslip damp coupling torque of the stabilize device (SDT100) and/or thestabilize device (SDT200) and/or the stabilize device (SDT300) installedbetween the two opposite wheel sets at the left and right sides, theoperation of the system can be stabilized; the stabilize device (SDT100)and/or the stabilize device (SDT200) and/or the stabilize device(SDT300) can be optionally installed according to actual needs;transmission device (T100), (T200), (T300), (T400), (T500), (T600): theoutput end of the transmission device (T100) is served to drive thewheel set (W100) at the rear left side of the loading end, and the inputend thereof is driven by the rotary kinetic power from the output end ofthe continuous variable transmission (CVT100); the output end of thetransmission device (T200) is served to drive the wheel set (W200) atthe rear right side, and the input end thereof is driven by the rotarykinetic power from the output end of the continuous variabletransmission (CVT200); the output end of (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the output end of the transmission device (T500)is served to drive the wheel set (W500) at the middle left side of theloading end, and the input end thereof is driven by the rotary kineticpower from the output end of the continuous variable transmission(CVT500); the output end of the transmission device (T600) is served todrive the wheel set (W600) at the middle right side of the loading end,and the input end thereof is driven by the rotary kinetic power from theoutput end of the continuous variable transmission (CVT600); thetransmission devices (T100), (T200), (T300), (T400), (T500), (T600) areconsisted of mechanical gear sets, or chain sets, pulley sets or linkagerod sets, and structured as a transmission device having fixed speedratio for acceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300),(T400), (T500), (T600) can be optionally installed according to actualneeds; clutch device (CL100), (CL200), (CL300), (CL400), (CL500),(CL600): the clutch device (CL100) is installed between the output endof the continuous variable transmission (CVT100) and the wheel set(W100) for controlling the continuous variable transmission (CVT100) tooutput the rotary kinetic power to the wheel set (W100), the clutchdevice (CL200) is installed between the output end of the continuousvariable transmission (CVT200) and the wheel set (W200) for controllingthe continuous variable transmission (CVT200) to output the rotarykinetic power to the wheel set (W200), the clutch device (CL300) isinstalled between the output end of the continuous variable transmission(CVT300) and the wheel set (W300) for controlling the continuousvariable transmission (CVT300) to output the rotary kinetic energy tothe wheel set (W300), the clutch device (CL400) is installed between theoutput end of the continuous variable transmission (CVT400) and thewheel set (W400) for controlling the continuous variable transmission(CVT400) to output the rotary kinetic energy to the wheel set (W400),the clutch device (CL500) is installed between the output end of thecontinuous variable transmission (CVT500) and the wheel set (W500) forcontrolling the continuous variable transmission (CVT500) to output therotary kinetic power to the wheel set (W500), and the clutch device(CL600) is installed between the output end of the continuous variabletransmission (CVT600) and the wheel set (W600) for controlling thecontinuous variable transmission (CVT600) to output the rotary kineticpower to the wheel set (W600); the clutch devices (CL100), (CL200),(CL300), (CL400), (CL500), (CL600) include being controlled by manualforce or centrifugal force, or controlled through the operationinterface (MI100), and formed as a clutch device or structure driven byelectric force and/or magnetic force and/or mechanical force and/orpressure and/or hydraulic force for performing transmission engaging orreleasing, and having a rotary input end and a rotary output end; theclutch devices (CL100, CL200, CL300, CL400, CL500, CL600) can beoptionally installed upon actual needs; common load body (L100) can beprovided with one or more than one non-powered wheels according toactual needs; with the operation of the mentioned devices, when thecommon load body (L100) is driven to operate by the rotary kinetic powersource (P100), and the wheel set (W100) at the rear left side and thewheel set (W200) at the rear right side of the loading end are operatedin differential speeds, the speed ratios of the continuous variabletransmission (CVT100) and the continuous variable transmission (CVT200)are individually adjusted along with the load varying of the wheel set(W100) and the wheel set (W200) of the loading end, and the two outputends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT100) and theinput end of the continuous variable transmission (CVT200); when thewheel set (W300) at the front left side and the wheel set (W400) at thefront right side of the loading end are operated in differential speeds,the speed ratios of the continuous variable transmission (CVT300) andthe continuous variable transmission (CVT400) are individually adjustedalong with the load varying of the wheel set (W300) and the wheel set(W400) of the loading end, and the left end output shaft (1011) and theright end output shaft (1012) of the two output ends of the firstepicyclic gear set (EG101) perform differential operation for adjustmentso as to drive in differential speed between the input end of thecontinuous variable transmission (CVT300) and the input end of thecontinuous variable transmission (CVT400); accordingly, when the wheelset (W500) at the middle left side and the wheel set (W600) at themiddle right side of the loading end are operated in differentialspeeds, the speed ratios of the continuous variable transmission(CVT500) and the continuous variable transmission (CVT600) areindividually adjusted along with the load varying of the wheel set(W500) and the wheel set (W600) of the loading end, and the left endoutput shaft (1011) and the right end output shaft (1012) of the twooutput ends of the first epicyclic gear set (EG101) perform differentialoperation for adjustment, so as to drive in differential speed betweenthe input end of the continuous variable transmission (CVT500) and theinput end of the continuous variable transmission (CVT600); if theoperation in differential speed are performed between the wheel set(W100) and the wheel set (W200) and/or between the wheel set (W300) andthe wheel set (W400) and/or between the wheel set (W500) and the wheelset (W600) at the same time, the interactive differential operation isjointly formed between the continuous variable transmission (CVT100) andthe continuous variable transmission (CVT200) and/or between thecontinuous variable transmission (CVT300) and the continuous variabletransmission (CVT400) and/or between the continuous variabletransmission (CVT500) and the continuous variable transmission (CVT600),and between the left end output shaft (1011) and the right end outputshaft (1012) of the two output ends of the first epicyclic gear set(EG101).
 5. A multi-CVT drive system having epicyclic gear set asclaimed in claim 2, wherein when more wheel sets sharing the sameepicyclic gear set and having individual continuous variabletransmission at the loading end, the structured system can be formedwith the same means disclosed above, wherein the limited slipdifferential or the stabilize device composed of the dual shaftconnecting device having slip coupling torque installed at oppositelocations horizontally and coaxially defined at two sides along thedriving direction of the common load body (L100) and between the sametransmission operation sets, or the transmission device or clutch deviceinstalled between the individual CVT to the wheel set can be all orpartially installed or none of the above is installed.
 6. A multi-CVTdrive system having epicyclic gear set as claimed in claim 1, wherein itutilizes the rotary output end of the rotary kinetic power source (P100)of the common load body (L100) to directly or through the transmissiondevice (T101) to drive the first epicyclic gear set (EG101), and thecontinuous variable transmission (CVT100) is individually installedbetween the left end output shaft (1011) of the two output ends of thefirst epicyclic gear set (EG101) and the wheel set (W100) at the rearleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT200) isindividually installed between the right end output shaft (1012) and thewheel set (W200) at the rear right side of the loading end at the rightside of the common load body (L100); the rotary output end of the rotarykinetic power source (P100) is directly or through the transmissiondevice (T101) to drive the second epicyclic gear set (EG102), and thecontinuous variable transmission (CVT300) is individually installedbetween the left end output shaft (1021) of the two output ends of thesecond epicyclic gear set (EG102) and the wheel set (W300) at the frontleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT400) isindividually installed between the right end output shaft (1022) and thewheel set (W400) at the front right side of the loading end at the rightside of the common load body (L100), thereby forming the drive systemcapable of being operated in the differential speed state, which mainlyconsists of: rotary kinetic power source (P100): constituted by a powersource outputting kinetic power through rotation, e.g. an internalcombustion engine, external combustion engine, spring power source,hydraulic power source, pressure power source, flywheel power source ormanual force, or animal force, wind power source, and/or composed of aAC or DC, brush or brushless, synchronous or non-synchronous, internalrotating or external rotating type rotary motor installed with relativecontrol devices and electrically driven by power supply and/or storagedevice; the output end thereof includes outputting directly oroutputting through a clutch device; transmission device (T101):constituted by a transmission device having fixed speed ratio orvariable speed ratio or continuous variable speed and consisted ofmechanical gear sets, or chain sets or pulley sets or linkage rod sets;installed between the rotary kinetic power source (P100) and the firstepicyclic gear set (EG101) and the second epicyclic gear set (EG102);the transmission device (T101) can be optionally adopted according toactual needs; first epicyclic gear set (EG101): constituted by anepicyclic gear set having an input shaft and two output shafts capableof differentially operating, directly driven by the rotary kinetic powerprovided by an engine, or driven by the engine through the transmissiondevice (T101); the left end output shaft (1011) of the two output shaftscapable of differentially operating is served to drive the input end ofthe continuous variable transmission (CVT100), and the right end outputshaft (1012) thereof is served to drive the input end of the continuousvariable transmission (CVT200); second epicyclic gear set (EG102):constituted by an epicyclic gear set having an input shaft and twooutput shafts capable of differentially operating, directly driven bythe rotary kinetic power provided by the engine, or driven by the enginethrough the transmission device (T101); the left end output shaft (1021)of the two output shafts capable of differentially operating is servedto drive the input end of the continuous variable transmission (CVT300),and the right end output shaft (1022) is served to drive the input endof the continuous variable transmission (CVT400); continuous variabletransmission (CVT100), (CVT200), (CVT300), (CVT400): the continuousvariable transmission (CVT) is in the structural configuration capableof automatically changing speed ratio upon passively receiving thedriving rotational speed and/or the loading torque, or is subject to theexternal control to actively change speed ratio, such as a rubber belttype, metal belt type, chain type continuous variable transmission, oran electric continuous variable transmission (ECVT), or a friction disktype, or a conventional different-shaft type continuous variabletransmission; operation interface (MI100): related to a linear analogtype, or digital type or hybrid type control device, and constituted byan operation mechanism and/or electromechanical device and/or solidstate electric circuit, provided for controlling the operation status ofthe rotary kinetic power source (P100), and/or controlling the operationof the continuous variable transmission (CVT100) and/or the continuousvariable transmission (CVT200) and/or the continuous variabletransmission (CVT300), and/or the continuous variable transmission(CVT400); stabilize device (SDT100), (STD200): constituted by a limitedslip differential, or a dual shaft connecting device composed of acoupling device having slip damp coupling torque, including a stabilizedevice with the dual shaft structure configured through fluid viscouseffect, hydrodynamic damp effect, mechanical friction effect,electromagnetic vortex effect or power generation reverse torque effect;wherein two rotating ends of the stabilize device (SDT100) arerespectively connected between the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading end,and two rotating ends of the stabilize device (SDT200) are respectivelyconnected between the wheel set (W300) at the front left side and thewheel set (W400) at the front right side of the loading end; during thedriving operation, if the load varying at the individual two sides ofthe loading end causes the unstable operation, with the slip dampcoupling torque of the stabilize device (SDT100) and/or the stabilizedevice (SDT200) installed between the two opposite wheel sets at theleft and right sides, the operation of the system can be stabilized; thestabilize device (SDT100) and/or the stabilize device (SDT200) can beoptionally installed according to actual needs; transmission device(T100), (T200), (T300), (T400): the output end of the transmissiondevice (T100) is served to drive the wheel set (W100) at the rear leftside of the loading end, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT100); the output end of the transmission device (T200)is served to drive the wheel set (W200) at the rear right side, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT200); the output end ofthe transmission device (T300) is served to drive the wheel set (W300)at the front left side of the loading end, and the input end thereof isdriven by the rotary kinetic power from the output end of the continuousvariable transmission (CVT300); the output end of the transmissiondevice (T400) is served to drive the wheel set (W400) at the front rightside, and the input end thereof is driven by the rotary kinetic powerfrom the output end of the continuous variable transmission (CVT400);the transmission devices (T100), (T200), (T300), (T400) are consisted ofmechanical gear sets, or chain sets, pulley sets or linkage rod sets,and structured as a transmission device having fixed speed ratio foracceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300), (T400)can be optionally installed according to actual needs; clutch device(CL100), (CL200), (CL300), (CL400): the clutch device (CL100) isinstalled between the output end of the continuous variable transmission(CVT100) and the wheel set (W100) for controlling the continuousvariable transmission (CVT100) to output the rotary kinetic power to thewheel set (W100), the clutch device (CL200) is installed between theoutput end of the continuous variable transmission (CVT200) and thewheel set (W200) for controlling the continuous variable transmission(CVT200) to output the rotary kinetic power to the wheel set (W200), theclutch device (CL300) is installed between the output end of thecontinuous variable transmission (CVT300) and the wheel set (W300) forcontrolling the continuous variable transmission (CVT300) to output therotary kinetic energy to the wheel set (W300), and the clutch device(CL400) is installed between the output end of the continuous variabletransmission (CVT400) and the wheel set (W400) for controlling thecontinuous variable transmission (CVT400) to output the rotary kineticenergy to the wheel set (W400); the clutch devices (CL100), (CL200),(CL300), (CL400) include being controlled by manual force or centrifugalforce, or controlled through the operation interface (MI100), and formedas a clutch device or structure driven by electric force and/or magneticforce and/or mechanical force and/or pressure and/or hydraulic force forperforming transmission engaging or releasing, and having a rotary inputend and a rotary output end; the clutch devices (CL100, CL200, CL300,CL400) can be optionally installed upon actual needs; common load body(L100) can be provided with one or more than one non-powered wheelsaccording to actual needs; with the operation of the mentioned devices,when the common load body (L100) is driven to operate by the rotarykinetic power source (P100), and the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading endare operated in differential speeds, the speed ratios of the continuousvariable transmission (CVT100) and the continuous variable transmission(CVT200) are individually adjusted along with the load varying of thewheel set (W100) and the wheel set (W200) of the loading end, and thetwo output ends of the first epicyclic gear set (EG101) performdifferential operation for adjustment, so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT100) and the input end of the continuous variable transmission(CVT200); when the wheel set (W300) at the front left side and the wheelset (W400) at the front right side of the loading end are operated indifferential speeds, the speed ratios of the continuous variabletransmission (CVT300) and the continuous variable transmission (CVT400)are individually adjusted along with the load varying of the wheel set(W300) and the wheel set (W400) of the loading end, and the left endoutput shaft (1021) and the right end output shaft (1022) of the twooutput ends of the second epicyclic gear set (EG102) performdifferential operation for adjustment so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT300) and the input end of the continuous variable transmission(CVT400).
 7. A multi-CVT drive system having epicyclic gear set asclaimed in claim 6, wherein it utilizes the rotary output end of therotary kinetic power source (P100) of the common load body (L100) todirectly or through the transmission device (T101) to drive the firstepicyclic gear set (EG101), and the continuous variable transmission(CVT100) is individually installed between the left end output shaft(1011) of the two output ends of the first epicyclic gear set (EG101)and the wheel set (W100) at the rear left side of the loading end at theleft side of the common load body (L100), and the continuous variabletransmission (CVT200) is individually installed between the right endoutput shaft (1012) and the wheel set (W200) at the rear right side ofthe loading end at the right side of the common load body (L100); andutilizes the rotary output end of the rotary kinetic power source (P100)to directly or through the transmission device (T101) to drive thesecond epicyclic gear set (EG102), and the continuous variabletransmission (CVT300) is individually installed between the left endoutput shaft (1021) of the two output ends of the second epicyclic gearset (EG102) and the wheel set (W300) at the front left side of theloading end at the left side of the common load body (L100), and thecontinuous variable transmission (CVT400) is individually installedbetween the right end output shaft (1022) and the wheel set (W400) atthe front right side of the loading end at the right side of the commonload body (L100); and utilizes the rotary output end of the rotarykinetic power source (P100) to directly or through the transmissiondevice (T101) to drive the third epicyclic gear set (EG103), and thecontinuous variable transmission (CVT500) is individually installedbetween the left end output shaft (1031) of the two output ends of thethird epicyclic gear set (EG103) and the wheel set (W500) at the middleleft side of the loading end at the left side of the common load body(L100), and the continuous variable transmission (CVT600) isindividually installed between the right end output shaft (1032) and thewheel set (W600) at the middle right side of the loading end at theright side of the common load body (L100), thereby forming the drivesystem capable of being operated in the differential speed state, whichmainly consists of: rotary kinetic power source (P100): constituted by apower source outputting kinetic power through rotation, e.g. an internalcombustion engine, external combustion engine, spring power source,hydraulic power source, pressure power source, flywheel power source ormanual force, or animal force, wind power source, and/or composed of aAC or DC, brush or brushless, synchronous or non-synchronous, internalrotating or external rotating type rotary motor installed with relativecontrol devices and electrically driven by power supply and/or storagedevice; the output end thereof includes outputting directly oroutputting through a clutch device; transmission device (T101):constituted by a transmission device having fixed speed ratio orvariable speed ratio or continuous variable speed and consisted ofmechanical gear sets, or chain sets or pulley sets or linkage rod sets;installed between the rotary kinetic power source (P100) and the firstepicyclic gear set (EG101) and the second epicyclic gear set (EG102) andthe third epicyclic gear set (EG103); the transmission device (T101) canbe optionally adopted according to actual needs; first epicyclic gearset (EG101): constituted by an epicyclic gear set having an input shaftand two output shafts capable of differentially operating, directlydriven by the rotary kinetic power provided by an engine, or driven bythe engine through the transmission device (T101); the left end outputshaft (1011) of the two output shafts capable of differentiallyoperating is served to drive the input end of the continuous variabletransmissions (CVT100), and the right end output shaft (1012) thereof isserved to drive the input end of the continuous variable transmission(CVT200); second epicyclic gear set (EG102): constituted by an epicyclicgear set having an input shaft and two output shafts capable ofdifferentially operating, directly driven by the rotary kinetic powerprovided by the engine, or driven by the engine through the transmissiondevice (T101); the left end output shaft (1021) of the two output shaftscapable of differentially operating is served to drive the input end ofthe continuous variable transmission (CVT300), and the right end outputshaft (1022) thereof is served to drive the input end of the continuousvariable transmission (CVT400); third epicyclic gear set (EG103):constituted by an epicyclic gear set having an input shaft and twooutput shafts capable of differentially operating, directly driven bythe rotary kinetic power provided by the engine, or driven by the enginethrough the transmission device (T101); the left end output shaft (1031)of the two output shafts capable of differentially operating is servedto drive the input end of the continuous variable transmission (CVT500),and the right end output shaft (1032) thereof is served to drive theinput end of the continuous variable transmission (CVT600); continuousvariable transmission (CVT100), (CVT200), (CVT300), (CVT400), (CVT500),(CVT600): the continuous variable transmission (CVT) is in thestructural configuration capable of automatically changing speed ratioupon passively receiving the driving rotational speed and/or the loadingtorque, or is subject to the external control to actively change speedratio, such as a rubber belt type, metal belt type, chain typecontinuous variable transmission, or an electric continuous variabletransmission (ECVT), or a friction disk type, or a conventionaldifferent-shaft type continuous variable transmission; operationinterface (MI100): related to a linear analog type, or digital type orhybrid type control device, and constituted by an operation mechanismand/or electromechanical device and/or solid state electric circuit,provided for controlling the operation status of the rotary kineticpower source (P100), and/or controlling the operation of the continuousvariable transmission (CVT100) and/or the continuous variabletransmission (CVT200) and/or the continuous variable transmission(CVT300), and/or the continuous variable transmission (CVT400), and/orthe continuous variable transmission (CVT500), and/or the continuousvariable transmission (CVT600); stabilize device (SDT100), (STD200),(STD300): constituted by a limited slip differential, or a dual shaftconnecting device composed of a coupling device having slip dampcoupling torque, including a stabilize device with the dual shaftstructure configured through fluid viscous effect, hydrodynamic dampeffect, mechanical friction effect, electromagnetic vortex effect orpower generation reverse torque effect; wherein two rotating ends of thestabilize device (SDT100) are respectively connected between the wheelset (W100) at the rear left side and the wheel set (W200) at the rearright side of the loading end, two rotating ends of the stabilize device(SDT200) are respectively connected between the wheel set (W300) at thefront left side and the wheel set (W400) at the front right side of theloading end, and two rotating ends of the stabilize device (SDT300) arerespectively connected between the wheel set (W500) at the middle leftside and the wheel set (W600) at the middle right side of the loadingend; during the driving operation, if the load varying at the individualtwo sides of the loading end causes the unstable operation, with theslip damp coupling torque of the stabilize device (SDT100) and/or thestabilize device (SDT200) and/or the stabilize device (SDT300) installedbetween the two opposite wheel sets at the left and right sides, theoperation of the system can be stabilized; the stabilize device (SDT100)and/or the stabilize device (SDT200) and/or the stabilize device(SDT300) can be optionally installed according to actual needs;transmission device (T100), (T200), (T300), (T400), (T500), (T600): theoutput end of the transmission device (T100) is served to drive thewheel set (W100) at the rear left side of the loading end, and the inputend thereof is driven by the rotary kinetic power from the output end ofthe continuous variable transmission (CVT100); the output end of thetransmission device (T200) is served to drive the wheel set (W200) atthe rear right side, and the input end thereof is driven by the rotarykinetic power from the output end of the continuous variabletransmission (CVT200); the output end of (T300) is served to drive thewheel set (W300) at the front left side of the loading end, and theinput end thereof is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT300); the output end ofthe transmission device (T400) is served to drive the wheel set (W400)at the front right side, and the input end thereof is driven by therotary kinetic power from the output end of the continuous variabletransmission (CVT400); the output end of the transmission device (T500)is served to drive the wheel set (W500) at the middle left side of theloading end, and the input end thereof is driven by the rotary kineticpower from the output end of the continuous variable transmission(CVT500); the output end of the transmission device (T600) is served todrive the wheel set (W600) at the middle right side of the loading end,and the input end is driven by the rotary kinetic power from the outputend of the continuous variable transmission (CVT600); the transmissiondevices (T100), (T200), (T300), (T400), (T500), (T600) are consisted ofmechanical gear sets, or chain sets, pulley sets or linkage rod sets,and structured as a transmission device having fixed speed ratio foracceleration or deceleration or changing direction, or amanually-operated or automatic or semi-automatic speed ratio or belttype continuous variable transmission, or a hydraulic type torqueconverter; the transmission devices (T100), (T200) and/or (T300),(T400), (T500), (T600) can be optionally installed according to actualneeds; clutch device (CL100), (CL200), (CL300), (CL400), (CL500),(CL600): the clutch device (CL100) is installed between the output endof the continuous variable transmission (CVT100) and the wheel set(W100) for controlling the continuous variable transmission (CVT100) tooutput the rotary kinetic power to the wheel set (W100), the clutchdevice (CL200) is installed between the output end of the continuousvariable transmission (CVT200) and the wheel set (W200) for controllingthe continuous variable transmission (CVT200) to output the rotarykinetic power to the wheel set (W200), the clutch device (CL300) isinstalled between the output end of the continuous variable transmission(CVT300) and the wheel set (W300) for controlling the continuousvariable transmission (CVT300) to output the rotary kinetic energy tothe wheel set (W300), the clutch device (CL400) is installed between theoutput end of the continuous variable transmission (CVT400) and thewheel set (W400) for controlling the continuous variable transmission(CVT400) to output the rotary kinetic energy to the wheel set (W400),the output end clutch device (CL500) is installed between the output endof the continuous variable transmission (CVT500) and the wheel set(W500) for controlling the continuous variable transmission (CVT500) tooutput the rotary kinetic power to the wheel set (W500), and the outputend clutch device (CL600) is installed between the output end of thecontinuous variable transmission (CVT600) and the wheel set (W600) forcontrolling the continuous variable transmission (CVT600) to output therotary kinetic power to the wheel set (W600); the clutch devices(CL100), (CL200), (CL300), (CL400), (CL500), (CL600) include beingcontrolled by manual force or centrifugal force, or controlled throughthe operation interface (MI100), and formed as a clutch device orstructure driven by electric force and/or magnetic force and/ormechanical force and/or pressure and/or hydraulic force for performingtransmission engaging or releasing, and having a rotary input end and arotary output end; the clutch devices (CL100, CL200, CL300, CL400,CL500, CL600) can be optionally installed upon actual needs; common loadbody (L100) can be provided with one or more than one non-powered wheelsaccording to actual needs; with the operation of the mentioned devices,when the common load body (L100) is driven to operate by the rotarykinetic power source (P100), and the wheel set (W100) at the rear leftside and the wheel set (W200) at the rear right side of the loading endare operated in differential speeds, the speed ratios of the continuousvariable transmission (CVT100) and the continuous variable transmission(CVT200) are individually adjusted along with the load varying of thewheel set (W100) and the wheel set (W200) of the loading end, and thetwo output ends of the first epicyclic gear set (EG101) performdifferential operation for adjustment, so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT100) and the input end of the continuous variable transmission(CVT200); when the wheel set (W300) at the front left side and the wheelset (W400) at the front right side of the loading end are operated indifferential speeds, the speed ratios of the continuous variabletransmission (CVT300) and the continuous variable transmission (CVT400)are individually adjusted along with the load varying of the wheel set(W300) and the wheel set (W400) of the loading end, and the left endoutput shaft (1021) and the right end output shaft (1022) of the twooutput ends of the second epicyclic gear set (EG102) performdifferential operation for adjustment so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT300) and the input end of the continuous variable transmission(CVT400); accordingly, when the wheel set (W500) at the middle left sideand the wheel set (W600) at the middle right side of the loading end areoperated in differential speeds, the speed ratios of the continuousvariable transmission (CVT500) and the continuous variable transmission(CVT600) are individually adjusted along with the load varying of thewheel set (W500) and the wheel set (W600) of the loading end, and theleft end output shaft (1031) and the right end output shaft (1032) ofthe two output ends of the third epicyclic gear set (EG103) performdifferential operation for adjustment, so as to drive in differentialspeed between the input end of the continuous variable transmission(CVT500) and the input end of the continuous variable transmission(CVT600).
 8. A multi-CVT drive system having epicyclic gear set asclaimed in claim 6, wherein when being applied in a loading end wheelset having more individual epicyclic gear sets and continuous variabletransmissions, the structured system can be formed with the same meansdisclosed above, wherein the limited slip differential or the stabilizedevice composed of the dual shaft connecting device having slip couplingtorque installed at opposite locations horizontally and coaxiallydefined at two sides along the driving direction of the common load body(L100) and between the same transmission operation sets, or thetransmission device, or the clutch device installed between theindividual CVT to the wheel set can be all or partially installed ornone of the above is installed.